Playground for Early Automotive Service Architecture Design and Evaluation

Context: We consider the structure of service-oriented architectures in vehicular software. Aim: We aim at evaluating the structure and grouping of service architectures. Method: We propose and discuss architectural metrics tailored towards automotive service-oriented architectures. We apply the metrics on an adaptive cruise control case example extracted from the AUTOSAR standard. Results: The application of the proposed metrics to two different service groupings for ACC points clearly to the same service grouping that we consider, after a thorough analysis, to be better with respect to coupling and cohesion attributes. Conclusion: We demonstrate the usefulness of proposed service group metrics in early design phases of the development process and validate the metrics on the case example of an adaptive cruise control function.